Differential D10972 Diff 29512 lib/mpris2/mprismediaplayer2player.cpp

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lib/mpris2/mprismediaplayer2player.cpp

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1​/*
2​Gwenview: an image viewer
3​Copyright 2018 Friedrich W. H. Kossebau <kossebau@kde.org>
4​
5​This program is free software; you can redistribute it and/or
6​modify it under the terms of the GNU General Public License
7​as published by the Free Software Foundation; either version 2
8​of the License, or (at your option) any later version.
9​
10​This program is distributed in the hope that it will be useful,
11​but WITHOUT ANY WARRANTY; without even the implied warranty of
12​MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13​GNU General Public License for more details.
14​
15​You should have received a copy of the GNU General Public License
16​along with this program; if not, write to the Free Software
17​Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18​*/
19​
20​#include "mprismediaplayer2player.h"
21​
22​#include <config-gwenview.h>
23​
24​// lib
25​#include <slideshow.h>
26​#include <mimetypeutils.h>
27​#include <contextmanager.h>
28​#include <imagemetainfomodel.h>
29​#include <document/documentfactory.h>
30​#include <semanticinfo/semanticinfodirmodel.h>
31​#include <semanticinfo/sorteddirmodel.h>
32​// KF
33​#include <KLocalizedString>
34​#include <KFileItem>
35​// Qt
36​#include <QDBusObjectPath>
37​#include <QAction>
38​#include <QDebug>
39​
40​namespace Gwenview
41​{
42​
43​static const double MAX_RATE = 1.0;
44​static const double MIN_RATE = 1.0;
45​
46​
47​MprisMediaPlayer2Player::MprisMediaPlayer2Player(const QString &objectDBusPath,
48​ SlideShow* slideShow,
49​ ContextManager* contextManager,
50​ QAction* toggleSlideShowAction, QAction* fullScreenAction,
51​ QAction* previousAction, QAction* nextAction,
52​ QObject* parent)
53​ : DBusAbstractAdaptor(objectDBusPath, parent)
54​ , mSlideShow(slideShow)
55​ , mContextManager(contextManager)
56​ , mToggleSlideShowAction(toggleSlideShowAction)
57​ , mFullScreenAction(fullScreenAction)
58​ , mPreviousAction(previousAction)
59​ , mNextAction(nextAction)
60​ , mSlideShowEnabled(mToggleSlideShowAction->isEnabled())
61​ , mPreviousEnabled(mPreviousAction->isEnabled())
62​ , mNextEnabled(mNextAction->isEnabled())
63​{
64​ updatePlaybackStatus();
65​
66​ connect(mSlideShow, &SlideShow::stateChanged,
67​ this, &MprisMediaPlayer2Player::onSlideShowStateChanged);
68​ connect(mContextManager, &ContextManager::currentUrlChanged,
69​ this, &MprisMediaPlayer2Player::onCurrentUrlChanged);
70​ connect(mSlideShow->randomAction(), &QAction::toggled,
71​ this, &MprisMediaPlayer2Player::onRandomActionToggled);
72​ connect(mToggleSlideShowAction, &QAction::changed,
73​ this, &MprisMediaPlayer2Player::onToggleSlideShowActionChanged);
74​ connect(mFullScreenAction, &QAction::toggled,
75​ this, &MprisMediaPlayer2Player::onFullScreenActionToggled);
76​ connect(mNextAction, &QAction::changed,
77​ this, &MprisMediaPlayer2Player::onNextActionChanged);
78​ connect(mPreviousAction, &QAction::changed,
79​ this, &MprisMediaPlayer2Player::onPreviousActionChanged);
80​}
81​
82​MprisMediaPlayer2Player::~MprisMediaPlayer2Player()
83​{
84​}
85​
86​bool MprisMediaPlayer2Player::updatePlaybackStatus()
87​{
88​ const QString newStatus =
89​ (!mSlideShowEnabled || !mFullScreenAction->isChecked()) ?
90​ QStringLiteral("Stopped") :
91​ mSlideShow->isRunning() ?
92​ QStringLiteral("Playing") :
93​ /* else */
94​ QStringLiteral("Paused");
95​
96​ const bool changed = (newStatus != mPlaybackStatus);
97​ if (changed) {
98​ mPlaybackStatus = newStatus;
99​ }
100​
101​ return changed;
102​}
103​
104​QString MprisMediaPlayer2Player::playbackStatus() const
105​{
106​ return mPlaybackStatus;
107​}
108​
109​bool MprisMediaPlayer2Player::canGoNext() const
110​{
111​ return mNextEnabled;
112​}
113​
114​void MprisMediaPlayer2Player::Next()
115​{
116​ mNextAction->trigger();
117​}
118​
119​
120​bool MprisMediaPlayer2Player::canGoPrevious() const
121​{
122​ return mPreviousEnabled;
123​}
124​
125​void MprisMediaPlayer2Player::Previous()
126​{
127​ mPreviousAction->trigger();
128​}
129​
130​bool MprisMediaPlayer2Player::canPause() const
rkflxUnsubmitted
Done

Now that Play/Pause works great, I think "Stop" should be equivalent to "Leave Fullscreen", i.e. end the auto-advancing and switch to windowed mode.

This would correspond nicely with the "Play" action entering fullscreen and starting playback.

rkflx: Now that Play/Pause works great, I think "Stop" should be equivalent to "Leave Fullscreen", i.e.
131​{
132​ return mSlideShowEnabled;
133​}
134​
135​void MprisMediaPlayer2Player::Pause()
136​{
137​ mSlideShow->stop();
138​}
139​
140​void MprisMediaPlayer2Player::PlayPause()
141​{
142​ mToggleSlideShowAction->trigger();
143​}
144​
145​void MprisMediaPlayer2Player::Stop()
146​{
147​ if (mFullScreenAction->isChecked()) {
148​ mFullScreenAction->trigger();
149​ }
150​}
151​
152​bool MprisMediaPlayer2Player::canPlay() const
153​{
154​ return mSlideShowEnabled;
155​}
156​
157​void MprisMediaPlayer2Player::Play()
158​{
159​ if (mSlideShow->isRunning()) {
160​ return;
161​ }
162​ mToggleSlideShowAction->trigger();
163​}
164​
165​double MprisMediaPlayer2Player::volume() const
166​{
167​ return 0;
168​}
169​
170​void MprisMediaPlayer2Player::setVolume(double volume)
171​{
172​ Q_UNUSED(volume);
173​}
174​
175​void MprisMediaPlayer2Player::setShuffle(bool isShuffle)
176​{
177​ mSlideShow->randomAction()->setChecked(isShuffle);
178​}
179​
180​QVariantMap MprisMediaPlayer2Player::metadata() const
181​{
182​ return mMetaData;
183​}
184​
185​qlonglong MprisMediaPlayer2Player::position() const
186​{
187​ return 0;
188​}
189​
190​double MprisMediaPlayer2Player::rate() const
191​{
192​ return 1.0;
193​}
194​
195​void MprisMediaPlayer2Player::setRate(double newRate)
196​{
197​ Q_UNUSED(newRate);
198​}
199​
200​double MprisMediaPlayer2Player::minimumRate() const
201​{
202​ return MIN_RATE;
203​}
204​
205​double MprisMediaPlayer2Player::maximumRate() const
206​{
207​ return MAX_RATE;
208​}
209​
210​bool MprisMediaPlayer2Player::isShuffle() const
211​{
212​ return mSlideShow->randomAction()->isChecked();
213​}
214​
215​
216​bool MprisMediaPlayer2Player::canSeek() const
217​{
218​ return false;
219​}
220​
221​bool MprisMediaPlayer2Player::canControl() const
222​{
223​ return true;
224​}
225​
226​void MprisMediaPlayer2Player::Seek(qlonglong offset)
227​{
228​ Q_UNUSED(offset);
229​}
230​
231​void MprisMediaPlayer2Player::SetPosition(const QDBusObjectPath& trackId, qlonglong pos)
232​{
233​ Q_UNUSED(trackId);
234​ Q_UNUSED(pos);
235​}
236​
237​void MprisMediaPlayer2Player::OpenUri(const QString& uri)
238​{
239​ Q_UNUSED(uri);
240​}
241​
242​void MprisMediaPlayer2Player::onSlideShowStateChanged()
243​{
244​ if (!updatePlaybackStatus()) {
245​ return;
246​ }
247​
248​ signalPropertyChange("PlaybackStatus", mPlaybackStatus);
249​}
250​
251​void MprisMediaPlayer2Player::onCurrentUrlChanged(const QUrl& url)
252​{
253​ if (url.isEmpty()) {
254​ mCurrentDocument = Document::Ptr();
255​ } else {
256​ mCurrentDocument = DocumentFactory::instance()->load(url);
257​ connect(mCurrentDocument.data(), &Document::metaInfoUpdated,
258​ this, &MprisMediaPlayer2Player::onMetaInfoUpdated);
259​ }
260​
261​ onMetaInfoUpdated();
262​}
263​
264​void MprisMediaPlayer2Player::onMetaInfoUpdated()
265​{
266​ QVariantMap updatedMetaData;
267​
268​ if (mCurrentDocument) {
269​ const QUrl url = mCurrentDocument->url();
270​ ImageMetaInfoModel* metaInfoModel = mCurrentDocument->metaInfo();
271​
rkflxUnsubmitted
Not Done

Would it be possible to include the folder name somewhere?

rkflx: Would it be possible to include the folder name somewhere?
kossebauAuthorUnsubmitted
Not Done

The folder name could be mapped onto "xesam:album" semantics instead of the "Gwenview Slideshow". What would be a good source to read the folder name from?

kossebau: The folder name could be mapped onto "xesam:album" semantics instead of the "Gwenview…
272​ // We need some unique id mapping to urls. The index in the list is not reliable,
273​ // as images can be added/removed during a running slideshow
274​ // To allow some bidrectional mapping, convert the url to base64 to encode it for
275​ // matching the D-Bus object path spec
276​ const QString slideId = QString::fromLatin1(url.toString().toUtf8().toBase64(QByteArray::OmitTrailingEquals));
277​ const QDBusObjectPath trackId(QLatin1String("/org/kde/gwenview/imagelist/") + slideId);
278​ updatedMetaData.insert(QStringLiteral("mpris:trackid"),
279​ QVariant::fromValue<QDBusObjectPath>(trackId));
280​
281​ // TODO: for videos also get and report the length
282​ if (MimeTypeUtils::urlKind(url) != MimeTypeUtils::KIND_VIDEO) {
283​ // TODO: implement other MPRIS API for position
284​ // convert seconds in microseconds
285​ // const qlonglong duration = qlonglong(mSlideShow->interval() * 1000000);
286​ // updatedMetaData.insert(QStringLiteral("mpris:length"), duration);
287​ }
288​
289​ // TODO: update on metadata changes, given user can edit most of this data
290​
291​ const QString name = metaInfoModel->getValueForKey(QStringLiteral("General.Name"));
292​ updatedMetaData.insert(QStringLiteral("xesam:title"), name);
293​ const QString comment = metaInfoModel->getValueForKey(QStringLiteral("General.Comment"));
294​ if (!comment.isEmpty()) {
295​ updatedMetaData.insert(QStringLiteral("xesam:comment"), comment);
296​ }
297​ updatedMetaData.insert(QStringLiteral("xesam:url"), url.toString());
298​ // slight bending of semantics :)
299​ const KFileItem folderItem(mContextManager->currentDirUrl());
300​ updatedMetaData.insert(QStringLiteral("xesam:album"), folderItem.text());
301​ // TODO: hook up with thumbnail cache and pass that as arturl
302​ // updatedMetaData.insert(QStringLiteral("mpris:artUrl"), url.toString());
303​
304​#ifndef GWENVIEW_SEMANTICINFO_BACKEND_NONE
305​ const QModelIndex index = mContextManager->dirModel()->indexForUrl(url);
306​ if (index.isValid()) {
307​ const double rating = index.data(SemanticInfoDirModel::RatingRole).toInt() / 10.0;
308​ updatedMetaData.insert(QStringLiteral("xesam:userRating"), rating);
309​ }
310​#endif
311​ // consider export of other metadata where mapping works
312​ }
313​
314​ if (updatedMetaData != mMetaData) {
315​ mMetaData = updatedMetaData;
316​
317​ signalPropertyChange("Metadata", mMetaData);
318​ }
319​}
320​
321​void MprisMediaPlayer2Player::onRandomActionToggled(bool checked)
322​{
323​ signalPropertyChange("Shuffle", checked);
324​}
325​
326​void MprisMediaPlayer2Player::onFullScreenActionToggled()
327​{
328​ if (!updatePlaybackStatus()) {
329​ return;
330​ }
331​
332​ signalPropertyChange("PlaybackStatus", mPlaybackStatus);
333​}
334​
335​void MprisMediaPlayer2Player::onToggleSlideShowActionChanged()
336​{
337​ const bool isEnabled = mToggleSlideShowAction->isEnabled();
338​ if (mSlideShowEnabled == isEnabled) {
339​ return;
340​ }
341​
342​ mSlideShowEnabled = isEnabled;
343​
344​ const bool playbackStatusChanged = updatePlaybackStatus();
345​
346​ signalPropertyChange("CanPlay", mSlideShowEnabled);
347​ signalPropertyChange("CanPause", mSlideShowEnabled);
348​ if (playbackStatusChanged) {
349​ signalPropertyChange("PlaybackStatus", mPlaybackStatus);
350​ }
351​}
352​
353​void MprisMediaPlayer2Player::onNextActionChanged()
354​{
355​ const bool isEnabled = mNextAction->isEnabled();
356​ if (mNextEnabled == isEnabled) {
357​ return;
358​ }
359​
360​ mNextEnabled = isEnabled;
361​
362​ signalPropertyChange("CanGoNext", mNextEnabled);
363​}
364​
365​
366​void MprisMediaPlayer2Player::onPreviousActionChanged()
367​{
368​ const bool isEnabled = mPreviousAction->isEnabled();
369​ if (mPreviousEnabled == isEnabled) {
370​ return;
371​ }
372​
373​ mPreviousEnabled = isEnabled;
374​
375​ signalPropertyChange("CanGoPrevious", mPreviousEnabled);
376​}
377​
378​}